Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | K56425-56650 | |
| Bore diameter | d | 107.95 mm |
| Outside diameter | D | 165.1 mm |
| Width | B | 15.874 mm |
| Basic dynamic load rating | C | 178 kN |
| Basic static load rating | C0 | 285 kN |
| Fatigue load limit | Pu | 33.5 kN |
| Reference speed | nref | 3000 r/min |
| Limiting speed | nG | 4050 r/min |
| Mass | ≈m | 2.74 kg |
| Precision class | ABMA4 — Class 4 (ANSI/ABMA 19.2:2013) | |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Tolerance class | ABMA4 | Class 4 (ANSI/ABMA 19.2:2013) |
| Heat treatment | Standard | |
| Cage | Standard | Sheet steel cage, window cage, roller-guided |
| Quality level | Standard | |
| Number of rows | 1 | Single-row design |
Main Dimensions & Performance Data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 107.95 mm4.25 in |
| Outside diameter | D | 165.1 mm6.5 in |
| Width, inner ring | B | 36.512 mm1.437 in |
| Width, outer ring | C | 26.988 mm1.063 in |
| Width assembled flange bearing | TF | 15.874 mm0.625 in |
| Basic dynamic load rating, radial | Cr | 178,000 N40,017.986 lbf |
| Basic static load rating, radial | C0r | 285,000 N64,073.741 lbf |
| Fatigue load limit, radial | Cur | 33,500 N7,531.475 lbf |
| Limiting speed | nG | 4,050 1/min |
| Thermal speed rating | nϑr | 3,000 1/min |
| Mass | ≈m | 2.74 kg6.041 lbs |
Mounting dimensions8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Maximum diameter of shaft shoulder | da max | 117 mm4.606 in |
| Minimum diameter of shaft shoulder | db min | 123 mm4.843 in |
| Minimum diameter of housing shoulder | Da min | 149 mm5.866 in |
| Minimum diameter of housing shoulder | Db min | 159 mm6.26 in |
| Minimum axial space | Ca min | 3 mm0.118 in |
| Minimum axial space | Cb min | 8 mm0.315 in |
| Maximum fillet radius of shaft | ra max | 3.6 mm0.142 in |
| Maximum fillet radius of housing | rb max | 3.3 mm0.13 in |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension of inner ring back face | r1, 2 min | 3.6 mm0.142 in |
| Minimum chamfer dimension of outer ring back face | r3, 4 min | 3.3 mm0.13 in |
| Distance between the apexes of the pressure cones | a | 39 mm1.535 in |
| Guidance rib diameter of inner ring | d1 | 138 mm5.433 in |
| Outside diameter flange | D1 | 171.348 mm6.746 in |
| Width flange | C1 | 6.35 mm0.25 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 120 °C248 °F |
Calculation factors3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y | e | 0.5 |
| Dynamic axial load factor | Y | 1.21 |
| Static axial load factor | Y0 | 0.66 |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2537455 | |
| Brand | FAG | |
| Base Type | K56425-56650 | |
| Base product | 2305091002 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Tapered roller bearings with flange K-Series, in inch sizes, separable | |
| Short Description | Tapered roller bearing |
Technical Data36 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 107.95 mm | |
| Outside Diameter (D) | 165.1 mm | |
| Width Assembled Flange Bearing (T F) | 15.874 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 178,000 N | |
| Basic Static Load Rating, Radial (C0R) | 285,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 4,050 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Reference Speed (Nϑr) | 3,000 1/min | |
| Maximum Fillet Radius Of Housing (Rb Max) | 3.3 mm | |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 3.3 mm | |
| Minimum Diameter Of Housing Shoulder (Da Min) | 149 mm | |
| Minimum Diameter Of Housing Shoulder (Db Min) | 159 mm | |
| Width, Outer Ring (C) | 26.988 mm | |
| Basic Dynamic Load Rating, Radial (C R) | 178,000 N | |
| Basic Static Load Rating, Radial (C 0R) | 285,000 N | |
| Limiting Speed (N G) | 4,050 1/min | |
| Reference Speed (N Θr) | 3,000 1/min | |
| Fatigue Load Limit, Radial (Cur) | 33,500 N | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.5 | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 117 mm | |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 123 mm | |
| Dynamic Axial Load Factor (Y) | 1.21 | |
| Maximum Fillet Radius (Ra Max) | 3.6 mm | |
| Outside Diameter Flange (D1) | 171.348 mm | |
| Minimum Axial Space (Cb Min) | 8 mm | |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 3.6 mm | |
| Operating Temperature Max. (T Max) | 120 °C | |
| Width Assembled Flange Bearing (Tf) | 15.874 mm | |
| Guidance Rib Diameter Of Inner Ring (D1) | 138 mm | |
| Minimum Axial Space (Ca Min) | 3 mm | |
| Operating Temperature Min. (T Min) | -30 °C | |
| Width Flange (C1) | 6.35 mm | |
| Width, Inner Ring (B) | 36.512 mm | |
| Static Axial Load Factor (Y0) | 0.66 | |
| Distance Between The Apexes Of The Pressure Cones (A) | 39 mm |
